Answer:
Fossil B
Explanation:
Fossil B is older because it's later is at the bottom
The radius of the electron's or basically the energy level for which the electron is found orbiting the nucleus of he hydrogen atom, as the principal quantum number tells us primarily the energy level that the electron will be found, is it the 1st, 2nd, and 3rd. The other quantum numbers tells us more specifically as per the subshell of the main shell the electron is in, the spin of the electron etc.
both of the answers are bone
Explanation:
Mark me as brainliest
